1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD 3 * 4 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 /*- 32 * Copyright (c) 2001 The NetBSD Foundation, Inc. 33 * All rights reserved. 34 * 35 * This code is derived from software contributed to The NetBSD Foundation 36 * by Ichiro FUKUHARA (ichiro@ichiro.org). 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 48 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 49 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 50 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 51 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 52 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 53 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 54 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 55 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 56 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 57 * POSSIBILITY OF SUCH DAMAGE. 58 */ 59 60 #include <sys/stdint.h> 61 #include <sys/stddef.h> 62 #include <sys/param.h> 63 #include <sys/queue.h> 64 #include <sys/types.h> 65 #include <sys/systm.h> 66 #include <sys/kernel.h> 67 #include <sys/bus.h> 68 #include <sys/module.h> 69 #include <sys/lock.h> 70 #include <sys/mutex.h> 71 #include <sys/condvar.h> 72 #include <sys/sysctl.h> 73 #include <sys/sx.h> 74 #include <sys/unistd.h> 75 #include <sys/callout.h> 76 #include <sys/malloc.h> 77 #include <sys/priv.h> 78 79 #include <dev/usb/usb.h> 80 #include <dev/usb/usbdi.h> 81 #include <dev/usb/usbdi_util.h> 82 #include "usbdevs.h" 83 84 #define USB_DEBUG_VAR ubsa_debug 85 #include <dev/usb/usb_debug.h> 86 #include <dev/usb/usb_process.h> 87 88 #include <dev/usb/serial/usb_serial.h> 89 90 #ifdef USB_DEBUG 91 static int ubsa_debug = 0; 92 93 static SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 94 "USB ubsa"); 95 SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RWTUN, 96 &ubsa_debug, 0, "ubsa debug level"); 97 #endif 98 99 #define UBSA_BSIZE 1024 /* bytes */ 100 101 #define UBSA_CONFIG_INDEX 0 102 #define UBSA_IFACE_INDEX 0 103 104 #define UBSA_REG_BAUDRATE 0x00 105 #define UBSA_REG_STOP_BITS 0x01 106 #define UBSA_REG_DATA_BITS 0x02 107 #define UBSA_REG_PARITY 0x03 108 #define UBSA_REG_DTR 0x0A 109 #define UBSA_REG_RTS 0x0B 110 #define UBSA_REG_BREAK 0x0C 111 #define UBSA_REG_FLOW_CTRL 0x10 112 113 #define UBSA_PARITY_NONE 0x00 114 #define UBSA_PARITY_EVEN 0x01 115 #define UBSA_PARITY_ODD 0x02 116 #define UBSA_PARITY_MARK 0x03 117 #define UBSA_PARITY_SPACE 0x04 118 119 #define UBSA_FLOW_NONE 0x0000 120 #define UBSA_FLOW_OCTS 0x0001 121 #define UBSA_FLOW_ODSR 0x0002 122 #define UBSA_FLOW_IDSR 0x0004 123 #define UBSA_FLOW_IDTR 0x0008 124 #define UBSA_FLOW_IRTS 0x0010 125 #define UBSA_FLOW_ORTS 0x0020 126 #define UBSA_FLOW_UNKNOWN 0x0040 127 #define UBSA_FLOW_OXON 0x0080 128 #define UBSA_FLOW_IXON 0x0100 129 130 /* line status register */ 131 #define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */ 132 #define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */ 133 #define UBSA_LSR_BI 0x10 /* Break detected */ 134 #define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */ 135 #define UBSA_LSR_PE 0x04 /* Parity error */ 136 #define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */ 137 #define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */ 138 #define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */ 139 140 /* modem status register */ 141 /* All deltas are from the last read of the MSR. */ 142 #define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */ 143 #define UBSA_MSR_RI 0x40 /* Current Ring Indicator */ 144 #define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */ 145 #define UBSA_MSR_CTS 0x10 /* Current Clear to Send */ 146 #define UBSA_MSR_DDCD 0x08 /* DCD has changed state */ 147 #define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */ 148 #define UBSA_MSR_DDSR 0x02 /* DSR has changed state */ 149 #define UBSA_MSR_DCTS 0x01 /* CTS has changed state */ 150 151 enum { 152 UBSA_BULK_DT_WR, 153 UBSA_BULK_DT_RD, 154 UBSA_INTR_DT_RD, 155 UBSA_N_TRANSFER, 156 }; 157 158 struct ubsa_softc { 159 struct ucom_super_softc sc_super_ucom; 160 struct ucom_softc sc_ucom; 161 162 struct usb_xfer *sc_xfer[UBSA_N_TRANSFER]; 163 struct usb_device *sc_udev; 164 struct mtx sc_mtx; 165 166 uint8_t sc_iface_no; /* interface number */ 167 uint8_t sc_iface_index; /* interface index */ 168 uint8_t sc_lsr; /* local status register */ 169 uint8_t sc_msr; /* UBSA status register */ 170 }; 171 172 static device_probe_t ubsa_probe; 173 static device_attach_t ubsa_attach; 174 static device_detach_t ubsa_detach; 175 static void ubsa_free_softc(struct ubsa_softc *); 176 177 static usb_callback_t ubsa_write_callback; 178 static usb_callback_t ubsa_read_callback; 179 static usb_callback_t ubsa_intr_callback; 180 181 static void ubsa_cfg_request(struct ubsa_softc *, uint8_t, uint16_t); 182 static void ubsa_free(struct ucom_softc *); 183 static void ubsa_cfg_set_dtr(struct ucom_softc *, uint8_t); 184 static void ubsa_cfg_set_rts(struct ucom_softc *, uint8_t); 185 static void ubsa_cfg_set_break(struct ucom_softc *, uint8_t); 186 static int ubsa_pre_param(struct ucom_softc *, struct termios *); 187 static void ubsa_cfg_param(struct ucom_softc *, struct termios *); 188 static void ubsa_start_read(struct ucom_softc *); 189 static void ubsa_stop_read(struct ucom_softc *); 190 static void ubsa_start_write(struct ucom_softc *); 191 static void ubsa_stop_write(struct ucom_softc *); 192 static void ubsa_cfg_get_status(struct ucom_softc *, uint8_t *, 193 uint8_t *); 194 static void ubsa_poll(struct ucom_softc *ucom); 195 196 static const struct usb_config ubsa_config[UBSA_N_TRANSFER] = { 197 198 [UBSA_BULK_DT_WR] = { 199 .type = UE_BULK, 200 .endpoint = UE_ADDR_ANY, 201 .direction = UE_DIR_OUT, 202 .bufsize = UBSA_BSIZE, /* bytes */ 203 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 204 .callback = &ubsa_write_callback, 205 }, 206 207 [UBSA_BULK_DT_RD] = { 208 .type = UE_BULK, 209 .endpoint = UE_ADDR_ANY, 210 .direction = UE_DIR_IN, 211 .bufsize = UBSA_BSIZE, /* bytes */ 212 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 213 .callback = &ubsa_read_callback, 214 }, 215 216 [UBSA_INTR_DT_RD] = { 217 .type = UE_INTERRUPT, 218 .endpoint = UE_ADDR_ANY, 219 .direction = UE_DIR_IN, 220 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 221 .bufsize = 0, /* use wMaxPacketSize */ 222 .callback = &ubsa_intr_callback, 223 }, 224 }; 225 226 static const struct ucom_callback ubsa_callback = { 227 .ucom_cfg_get_status = &ubsa_cfg_get_status, 228 .ucom_cfg_set_dtr = &ubsa_cfg_set_dtr, 229 .ucom_cfg_set_rts = &ubsa_cfg_set_rts, 230 .ucom_cfg_set_break = &ubsa_cfg_set_break, 231 .ucom_cfg_param = &ubsa_cfg_param, 232 .ucom_pre_param = &ubsa_pre_param, 233 .ucom_start_read = &ubsa_start_read, 234 .ucom_stop_read = &ubsa_stop_read, 235 .ucom_start_write = &ubsa_start_write, 236 .ucom_stop_write = &ubsa_stop_write, 237 .ucom_poll = &ubsa_poll, 238 .ucom_free = &ubsa_free, 239 }; 240 241 static const STRUCT_USB_HOST_ID ubsa_devs[] = { 242 /* AnyData ADU-500A */ 243 {USB_VPI(USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_500A, 0)}, 244 /* AnyData ADU-E100A/H */ 245 {USB_VPI(USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_E100X, 0)}, 246 /* Axesstel MV100H */ 247 {USB_VPI(USB_VENDOR_AXESSTEL, USB_PRODUCT_AXESSTEL_DATAMODEM, 0)}, 248 /* BELKIN F5U103 */ 249 {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103, 0)}, 250 /* BELKIN F5U120 */ 251 {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120, 0)}, 252 /* GoHubs GO-COM232 */ 253 {USB_VPI(USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM, 0)}, 254 /* GoHubs GO-COM232 */ 255 {USB_VPI(USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232, 0)}, 256 /* Peracom */ 257 {USB_VPI(USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1, 0)}, 258 }; 259 260 static device_method_t ubsa_methods[] = { 261 DEVMETHOD(device_probe, ubsa_probe), 262 DEVMETHOD(device_attach, ubsa_attach), 263 DEVMETHOD(device_detach, ubsa_detach), 264 DEVMETHOD_END 265 }; 266 267 static devclass_t ubsa_devclass; 268 269 static driver_t ubsa_driver = { 270 .name = "ubsa", 271 .methods = ubsa_methods, 272 .size = sizeof(struct ubsa_softc), 273 }; 274 275 DRIVER_MODULE(ubsa, uhub, ubsa_driver, ubsa_devclass, NULL, 0); 276 MODULE_DEPEND(ubsa, ucom, 1, 1, 1); 277 MODULE_DEPEND(ubsa, usb, 1, 1, 1); 278 MODULE_VERSION(ubsa, 1); 279 USB_PNP_HOST_INFO(ubsa_devs); 280 281 static int 282 ubsa_probe(device_t dev) 283 { 284 struct usb_attach_arg *uaa = device_get_ivars(dev); 285 286 if (uaa->usb_mode != USB_MODE_HOST) { 287 return (ENXIO); 288 } 289 if (uaa->info.bConfigIndex != UBSA_CONFIG_INDEX) { 290 return (ENXIO); 291 } 292 if (uaa->info.bIfaceIndex != UBSA_IFACE_INDEX) { 293 return (ENXIO); 294 } 295 return (usbd_lookup_id_by_uaa(ubsa_devs, sizeof(ubsa_devs), uaa)); 296 } 297 298 static int 299 ubsa_attach(device_t dev) 300 { 301 struct usb_attach_arg *uaa = device_get_ivars(dev); 302 struct ubsa_softc *sc = device_get_softc(dev); 303 int error; 304 305 DPRINTF("sc=%p\n", sc); 306 307 device_set_usb_desc(dev); 308 mtx_init(&sc->sc_mtx, "ubsa", NULL, MTX_DEF); 309 ucom_ref(&sc->sc_super_ucom); 310 311 sc->sc_udev = uaa->device; 312 sc->sc_iface_no = uaa->info.bIfaceNum; 313 sc->sc_iface_index = UBSA_IFACE_INDEX; 314 315 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index, 316 sc->sc_xfer, ubsa_config, UBSA_N_TRANSFER, sc, &sc->sc_mtx); 317 318 if (error) { 319 DPRINTF("could not allocate all pipes\n"); 320 goto detach; 321 } 322 /* clear stall at first run */ 323 mtx_lock(&sc->sc_mtx); 324 usbd_xfer_set_stall(sc->sc_xfer[UBSA_BULK_DT_WR]); 325 usbd_xfer_set_stall(sc->sc_xfer[UBSA_BULK_DT_RD]); 326 mtx_unlock(&sc->sc_mtx); 327 328 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 329 &ubsa_callback, &sc->sc_mtx); 330 if (error) { 331 DPRINTF("ucom_attach failed\n"); 332 goto detach; 333 } 334 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 335 336 return (0); 337 338 detach: 339 ubsa_detach(dev); 340 return (ENXIO); 341 } 342 343 static int 344 ubsa_detach(device_t dev) 345 { 346 struct ubsa_softc *sc = device_get_softc(dev); 347 348 DPRINTF("sc=%p\n", sc); 349 350 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 351 usbd_transfer_unsetup(sc->sc_xfer, UBSA_N_TRANSFER); 352 353 device_claim_softc(dev); 354 355 ubsa_free_softc(sc); 356 357 return (0); 358 } 359 360 UCOM_UNLOAD_DRAIN(ubsa); 361 362 static void 363 ubsa_free_softc(struct ubsa_softc *sc) 364 { 365 if (ucom_unref(&sc->sc_super_ucom)) { 366 mtx_destroy(&sc->sc_mtx); 367 device_free_softc(sc); 368 } 369 } 370 371 static void 372 ubsa_free(struct ucom_softc *ucom) 373 { 374 ubsa_free_softc(ucom->sc_parent); 375 } 376 377 static void 378 ubsa_cfg_request(struct ubsa_softc *sc, uint8_t index, uint16_t value) 379 { 380 struct usb_device_request req; 381 usb_error_t err; 382 383 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 384 req.bRequest = index; 385 USETW(req.wValue, value); 386 req.wIndex[0] = sc->sc_iface_no; 387 req.wIndex[1] = 0; 388 USETW(req.wLength, 0); 389 390 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 391 &req, NULL, 0, 1000); 392 if (err) { 393 DPRINTFN(0, "device request failed, err=%s " 394 "(ignored)\n", usbd_errstr(err)); 395 } 396 } 397 398 static void 399 ubsa_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 400 { 401 struct ubsa_softc *sc = ucom->sc_parent; 402 403 DPRINTF("onoff = %d\n", onoff); 404 405 ubsa_cfg_request(sc, UBSA_REG_DTR, onoff ? 1 : 0); 406 } 407 408 static void 409 ubsa_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff) 410 { 411 struct ubsa_softc *sc = ucom->sc_parent; 412 413 DPRINTF("onoff = %d\n", onoff); 414 415 ubsa_cfg_request(sc, UBSA_REG_RTS, onoff ? 1 : 0); 416 } 417 418 static void 419 ubsa_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff) 420 { 421 struct ubsa_softc *sc = ucom->sc_parent; 422 423 DPRINTF("onoff = %d\n", onoff); 424 425 ubsa_cfg_request(sc, UBSA_REG_BREAK, onoff ? 1 : 0); 426 } 427 428 static int 429 ubsa_pre_param(struct ucom_softc *ucom, struct termios *t) 430 { 431 432 DPRINTF("sc = %p\n", ucom->sc_parent); 433 434 switch (t->c_ospeed) { 435 case B0: 436 case B300: 437 case B600: 438 case B1200: 439 case B2400: 440 case B4800: 441 case B9600: 442 case B19200: 443 case B38400: 444 case B57600: 445 case B115200: 446 case B230400: 447 break; 448 default: 449 return (EINVAL); 450 } 451 return (0); 452 } 453 454 static void 455 ubsa_cfg_param(struct ucom_softc *ucom, struct termios *t) 456 { 457 struct ubsa_softc *sc = ucom->sc_parent; 458 uint16_t value = 0; 459 460 DPRINTF("sc = %p\n", sc); 461 462 switch (t->c_ospeed) { 463 case B0: 464 ubsa_cfg_request(sc, UBSA_REG_FLOW_CTRL, 0); 465 ubsa_cfg_set_dtr(&sc->sc_ucom, 0); 466 ubsa_cfg_set_rts(&sc->sc_ucom, 0); 467 break; 468 case B300: 469 case B600: 470 case B1200: 471 case B2400: 472 case B4800: 473 case B9600: 474 case B19200: 475 case B38400: 476 case B57600: 477 case B115200: 478 case B230400: 479 value = B230400 / t->c_ospeed; 480 ubsa_cfg_request(sc, UBSA_REG_BAUDRATE, value); 481 break; 482 default: 483 return; 484 } 485 486 if (t->c_cflag & PARENB) 487 value = (t->c_cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN; 488 else 489 value = UBSA_PARITY_NONE; 490 491 ubsa_cfg_request(sc, UBSA_REG_PARITY, value); 492 493 switch (t->c_cflag & CSIZE) { 494 case CS5: 495 value = 0; 496 break; 497 case CS6: 498 value = 1; 499 break; 500 case CS7: 501 value = 2; 502 break; 503 default: 504 case CS8: 505 value = 3; 506 break; 507 } 508 509 ubsa_cfg_request(sc, UBSA_REG_DATA_BITS, value); 510 511 value = (t->c_cflag & CSTOPB) ? 1 : 0; 512 513 ubsa_cfg_request(sc, UBSA_REG_STOP_BITS, value); 514 515 value = 0; 516 if (t->c_cflag & CRTSCTS) 517 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS; 518 519 if (t->c_iflag & (IXON | IXOFF)) 520 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON; 521 522 ubsa_cfg_request(sc, UBSA_REG_FLOW_CTRL, value); 523 } 524 525 static void 526 ubsa_start_read(struct ucom_softc *ucom) 527 { 528 struct ubsa_softc *sc = ucom->sc_parent; 529 530 /* start interrupt endpoint */ 531 usbd_transfer_start(sc->sc_xfer[UBSA_INTR_DT_RD]); 532 533 /* start read endpoint */ 534 usbd_transfer_start(sc->sc_xfer[UBSA_BULK_DT_RD]); 535 } 536 537 static void 538 ubsa_stop_read(struct ucom_softc *ucom) 539 { 540 struct ubsa_softc *sc = ucom->sc_parent; 541 542 /* stop interrupt endpoint */ 543 usbd_transfer_stop(sc->sc_xfer[UBSA_INTR_DT_RD]); 544 545 /* stop read endpoint */ 546 usbd_transfer_stop(sc->sc_xfer[UBSA_BULK_DT_RD]); 547 } 548 549 static void 550 ubsa_start_write(struct ucom_softc *ucom) 551 { 552 struct ubsa_softc *sc = ucom->sc_parent; 553 554 usbd_transfer_start(sc->sc_xfer[UBSA_BULK_DT_WR]); 555 } 556 557 static void 558 ubsa_stop_write(struct ucom_softc *ucom) 559 { 560 struct ubsa_softc *sc = ucom->sc_parent; 561 562 usbd_transfer_stop(sc->sc_xfer[UBSA_BULK_DT_WR]); 563 } 564 565 static void 566 ubsa_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 567 { 568 struct ubsa_softc *sc = ucom->sc_parent; 569 570 DPRINTF("\n"); 571 572 *lsr = sc->sc_lsr; 573 *msr = sc->sc_msr; 574 } 575 576 static void 577 ubsa_write_callback(struct usb_xfer *xfer, usb_error_t error) 578 { 579 struct ubsa_softc *sc = usbd_xfer_softc(xfer); 580 struct usb_page_cache *pc; 581 uint32_t actlen; 582 583 switch (USB_GET_STATE(xfer)) { 584 case USB_ST_SETUP: 585 case USB_ST_TRANSFERRED: 586 tr_setup: 587 pc = usbd_xfer_get_frame(xfer, 0); 588 if (ucom_get_data(&sc->sc_ucom, pc, 0, 589 UBSA_BSIZE, &actlen)) { 590 591 usbd_xfer_set_frame_len(xfer, 0, actlen); 592 usbd_transfer_submit(xfer); 593 } 594 return; 595 596 default: /* Error */ 597 if (error != USB_ERR_CANCELLED) { 598 /* try to clear stall first */ 599 usbd_xfer_set_stall(xfer); 600 goto tr_setup; 601 } 602 return; 603 604 } 605 } 606 607 static void 608 ubsa_read_callback(struct usb_xfer *xfer, usb_error_t error) 609 { 610 struct ubsa_softc *sc = usbd_xfer_softc(xfer); 611 struct usb_page_cache *pc; 612 int actlen; 613 614 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 615 616 switch (USB_GET_STATE(xfer)) { 617 case USB_ST_TRANSFERRED: 618 pc = usbd_xfer_get_frame(xfer, 0); 619 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 620 621 case USB_ST_SETUP: 622 tr_setup: 623 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 624 usbd_transfer_submit(xfer); 625 return; 626 627 default: /* Error */ 628 if (error != USB_ERR_CANCELLED) { 629 /* try to clear stall first */ 630 usbd_xfer_set_stall(xfer); 631 goto tr_setup; 632 } 633 return; 634 635 } 636 } 637 638 static void 639 ubsa_intr_callback(struct usb_xfer *xfer, usb_error_t error) 640 { 641 struct ubsa_softc *sc = usbd_xfer_softc(xfer); 642 struct usb_page_cache *pc; 643 uint8_t buf[4]; 644 int actlen; 645 646 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 647 648 switch (USB_GET_STATE(xfer)) { 649 case USB_ST_TRANSFERRED: 650 651 if (actlen >= (int)sizeof(buf)) { 652 pc = usbd_xfer_get_frame(xfer, 0); 653 usbd_copy_out(pc, 0, buf, sizeof(buf)); 654 655 /* 656 * MSR bits need translation from ns16550 to SER_* values. 657 * LSR bits are ns16550 in hardware and ucom. 658 */ 659 sc->sc_msr = 0; 660 if (buf[3] & UBSA_MSR_CTS) 661 sc->sc_msr |= SER_CTS; 662 if (buf[3] & UBSA_MSR_DCD) 663 sc->sc_msr |= SER_DCD; 664 if (buf[3] & UBSA_MSR_RI) 665 sc->sc_msr |= SER_RI; 666 if (buf[3] & UBSA_MSR_DSR) 667 sc->sc_msr |= SER_DSR; 668 sc->sc_lsr = buf[2]; 669 670 DPRINTF("lsr = 0x%02x, msr = 0x%02x\n", 671 sc->sc_lsr, sc->sc_msr); 672 673 ucom_status_change(&sc->sc_ucom); 674 } else { 675 DPRINTF("ignoring short packet, %d bytes\n", actlen); 676 } 677 /* FALLTHROUGH */ 678 case USB_ST_SETUP: 679 tr_setup: 680 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 681 usbd_transfer_submit(xfer); 682 return; 683 684 default: /* Error */ 685 if (error != USB_ERR_CANCELLED) { 686 /* try to clear stall first */ 687 usbd_xfer_set_stall(xfer); 688 goto tr_setup; 689 } 690 return; 691 692 } 693 } 694 695 static void 696 ubsa_poll(struct ucom_softc *ucom) 697 { 698 struct ubsa_softc *sc = ucom->sc_parent; 699 usbd_transfer_poll(sc->sc_xfer, UBSA_N_TRANSFER); 700 701 } 702